Hoisting and conveying apparatus



(No Model.)

F. L. CHAMBERLIN.

HOISTING AND CONVEYING APPARATUS. No. 432,977. Patented July 29, 1890.

UNITED STATES PATENT OEEICE.

FRANKLIN L. CIIAMBERLIN, OF CLEVELAND, OHIO.

HOISTING AND CONVEYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 482,977, dated July 29,1890.

Application filed February 19, 1890. Serial No. 341,078. (No model.)

To all whom it may concern:

Be it known that I, FRANKLIN L. CHAMBER- LIN, of Cleveland, in thecounty of Cuyahoga and State of Ohio,have invented certain new anduseful Improvements in IIoisting and Conveying Apparatus; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use the same.

My invention relates to improvements in hoisting and conveyingapparatus, thc same comprising a carrier suspended from an elevatedtrack, the carrier being provided with hoisting-drum and traction-wheelsand cage for the operator, the power being supplied by a running endlesscable, the different levers for operating' the brake, clutches andshifting mechanism being within the control of the operator, whereby thepower of the running cable may be transmitted to the hoistingdrum or tothe traction-wheels.

In the accompanying drawings, Figure l is a rear end elevation, the cageand track being in section. Fig. 2 is a side elevation. Fig. 3 is a planon bent line 0c, Fig. 2.

A A are the track-rails of the truss, and these may be inclined orhorizontal, whichever Inay be advisable under the circumstances.

B represents the carrier-frame constructed, preferably, of metal and ofsuch form as will accommodate the mechanism mounted therein, andincluding a cage or seat for thc operator. The carrier is supported bywheels B, traveling on tracks A aforesaid, and at least one set of thesewheels being connected by an axle bearing a sprocket-wheel b, the latterbeing connected by endless chain b to sprocket-wheel g. In case thetrack is on an incline it may be advisable to provide two such axles,and connect the same by means of sprocket-wheels and chain, so that bothof wheels B may serve as traction-wheels.

Beams B2, connected with the carrier-frame, extend lengthwise thetrack-rails and are provided with suitable boxes in which are journaledthe trunnions of wheels b2, these wheels engaging or coming close to theunder side of the track-rails A to prevent the possibility of thecarriers tilting or flying the track.

C is an endless running cable for transmitting power to the carrier,this cable being supposed to extend to the power-station on the one handand to pass around an idlesheave C,located at the other end of thetrack. The cable engages sheaves c c of the carrier, and from thencepasses around sheave D', the latter being rigidly mounted onthe driving-shaft or power-transmitting shaft D. On shaft D is also mounted pinionB2 and beveled friction-wheels d d. These beveled pinions are arrangedin the reverse order shown for engaging in common the bevelfriction-wheels 7L, the latter being mounted on the upright shaft H. Onthe upper end of this shaft is mounted bevel-gear II', engagingbevel-gear g', the latter, together with sprocket-wheels g aforesaid,being mounted on shaft G. The lower journal-bearing of shaft H may be asliding box, but is preferably an eccentric-box, having attached leversJL for turning the box on its axis to cause wheels h to engagealternately wheels d d for reversing the traction-wheels B. Then thislever is in its central position, there is sufficient clearance betweenthese frictionwheels, whereby the traction-wheels and connectedmechanism remain stationary.

E is the drum on which the hoisting-cables I I are wound, the drum beingloose on shaft F with collars or other devices for holding the drumendwise the shaft. At the onc end of the drum is a friction-wheel E2,embraced by a sectional friction-band J, the different sections thereofbeing connected by boltsj. These bolts have right and left handedscrewthreads engaging correspondingly screwthreaded holes in thefriction-band sections. Each bolt is provided with a short arm y", andthese arms are connected by links j2 with the extremes of spider K, thisspider being mounted loosely on the shaft, but held from turning on theshaft by means of the wellknown device of groove and spline. The spiderhub has an annular groove Z: for engaging the prongs of forked lever Ofor shifting the spider endwise on the shaft, by which movement of thespider bolts j are turned a trifle, but enough to expand or contract thefriction-band in loosening or grasping wheel E2. This friction-clutchmechanism is well IOO ` vided with friction-wheels E', embraced byfriction-band L. rlhe ends of this frictionband are provided with holesscrew-threaded, respectively, right and left handed for engaging thecorrespondingly screw-threaded section of rod l. By turning this rod onits axis in the one direction or the other the friction-band is loosenedor tightened. The free end of rod lis provided with a handle Z foroperating'the same. On shaft F is rigidly mounted gear F', engagingintermediate gear f, the latter in turn engaging pinion D2 aforesaid.Vith such construction, and cable C being continuously in motion, it isevident that shaft F will continuously revolve, and hence by operatinglever O frictionband J may at any time be operated for raising the load,and whenever the load is raised to the desired position by reversinglever O and simultaneously operating rod Z friction-band J is-loosenedand brake-band L is tightened, whereby the load is held suspended.Meanwhile the carrier, by manipulating lever 7L', is moved along thetrack to the desired point, whereupon the load is lowered by looseningbrake-band L.

That I claim isl. The combination, with a track and a carrier thereon,the latter having a hoistingdrum and traction-Wheels and apower-transmitting shaft, of a running cable passing around thepower-transmitting shaft on the carrier, and mechanism for connectingthe hoisting-drums and traction-wheels with the power-transmittingshaft, whereby either can be operated by said shaft.

2. rlhe combination, with a track, a carrier thereon, the latter havinga hoisting-drum, traction-Wheels, a power-transmitting shaft, gearingconnecting the power-transmitting shaft with the traction-wheels,gearing connectin g the power-transmitting shaft with the hoisting-drum,and mechanism for disconnecting said gearing, whereby the tractionwheelsor hoisting-drum can be actuated independently, of a running cable foractuating the power-transmitting shaft, substantially as set forth. Y

In testimony whereof I sign this specification, in the presence of twoWitnesses, this 6th day of February, 1890.

Gli-IAMBERLIN.

FRANKLIN L.

NVitnesses:

C. Il. DoRER,

WILL B. SAGE.

